<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        html,
        body {
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100%;
            display: grid;
            place-items: center;
            grid-template-columns: 1fr 1fr;
        }
    </style>
    <link rel="stylesheet" href="css/circle_loading.css">
    <link rel="stylesheet" href="css/bubble_loading.css">
    <link rel="stylesheet" href="css/teacup_loading.css">
    <link rel="stylesheet" href="css/play_button.css">
    <link rel="stylesheet" href="css/floating_button.css">
    <link rel="stylesheet" href="css/mail.css">
    <link rel="stylesheet" href="css/heart.css">
    <link rel="stylesheet" href="css/calendar.css">
    <link rel="stylesheet" href="css/land_mark.css">
    <link rel="stylesheet" href="css/progress_bar.css">
    <link rel="stylesheet" href="css/badge.css">
    <link rel="stylesheet" href="css/pb.css">
</head>

<body>
    <div class="circle_loading">20%</div>
    <div class="bubble_loading">20%</div>
    <div class="teacup_loading">20%</div>
    <div class="play_btn"></div>
    <div class="floating_btn"></div>
    <div class="mail"></div>
    <div class="heart"></div>
    <div class="calendar">31</div>
    <div class="landmark"></div>
    <div class="progress_bar"></div>
    <div class="badge">Hi</div>
    <div class="container">
        <div class="wave-change"></div>
        <div class="wave"></div>
    </div>
</body>

</html>